Wyoming Dams
1,490 dams tracked by the National Inventory of Dams
Total Dams
1,490
High Hazard
100
6.7%
Poor / Unsatisfactory
576
Average Age
62 yrs
Hazard Classification
High100 (6.7%)
Significant104 (7.0%)
Low1,283 (86.1%)
Condition Assessment
Satisfactory45 (3.0%)
Fair752 (50.5%)
Poor / Unsatisfactory576 (38.7%)
Not Rated117 (7.9%)
Federal
193
State
22
Local
82
Private
1,174
Tallest Dams
- Buffalo Bill Dam350 ft
- Seminoe Dam295 ft
- Alcova Dam265 ft
- Kortes Dam244 ft
- Boysen Dam220 ft
High Hazard Dams
- Buffalo Bill DamHigh
- Seminoe DamHigh
- Alcova DamHigh
- Kortes DamHigh
- Boysen DamHigh
Poor Condition Dams
- LapreleUnsatisfactory
- Upper Van TassellPoor
- Hawk SpringsPoor
- EastgatePoor
- BischoffPoor
All Dams in Wyoming
Showing 101–125 of 1,490
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Bell & Scranton No. 2 Albany County | 25 | 1947 | Low | Poor |
| Ben Johnson County | 29 | 1960 | Low | Poor |
| Bench Canal Big Horn County | 35 | 1969 | Low | Fair |
| Bentley Natrona County | 26 | 1960 | Low | Fair |
| Berdine Stock Albany County | 27 | 1989 | Low | Poor |
| Berger Crook County | 21 | 1954 | Low | Fair |
| Bergman Lake Teton County | 12 | 1953 | Low | Poor |
| Bethurem Big Horn County | 15 | 1918 | Low | Poor |
| Betty Crook County | 31 | 1957 | Low | Fair |
| Betty No. 1 Converse County | 33 | 1956 | Low | Poor |
| Big Boy Johnson County | 33 | 1969 | Low | Poor |
| Big Chief Dam Natrona County | 32 | 1964 | Low | Unsatisfactory |
| Big Dam Campbell County | 24 | — | Low | Fair |
| Big Delaney Weston County | 25 | 1970 | Low | Poor |
| Big Donaldson Johnson County | 22 | 1973 | Low | Fair |
| Big Goose Park (3rd Enl.) Sheridan County | 95 | 1958 | High | Fair |
| Big Horn Dike A Johnson County | 45 | 1964 | High | Fair |
| Big Horn Dike B Johnson County | 50 | 1964 | High | Fair |
| Big Horn Dike C Johnson County | 50 | 1964 | High | Fair |
| Big Pike Dam Natrona County | 35 | 1965 | Low | Unsatisfactory |
| Big Sandy Dam Sweetwater County | 85 | 1952 | High | Not Available |
| Big Sandy Dike Sweetwater County | 22 | 1952 | High | Not Available |
| Big V Natrona County | 22 | 1940 | Low | Fair |
| Bill Leavitt Reservoir Big Horn County | 27 | — | Low | Unsatisfactory |
| Bischoff Big Horn County | 56 | 1977 | Low | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.